Dave.. I've been running Eagle H-beams for years..
BUT I bought 3 or 4 sets when they first came out
with them... my opinion is they were better quality
back then... on one of my engines they went to 9600
rpm a couple of times and 8200 ALL the rest of the time
but I did opt for the 2000 bolts in them and had each set
checked for size.. and ALL my engines run .003/.003 with
half groove mains... I have stayed with what has worked for me
EDIT
IF I were looking right now.. it would be K-1 H-beams